| Base | Representation |
|---|---|
| bin | 1101111000010100001… |
| … | …1011111110110000000 |
| 3 | 211210111101001212200000 |
| 4 | 3132011003133312000 |
| 5 | 12401324101102442 |
| 6 | 301313412400000 |
| 7 | 23141102130000 |
| oct | 3360503376600 |
| 9 | 753441055600 |
| 10 | 238455487872 |
| 11 | 921459a7438 |
| 12 | 3a26a316000 |
| 13 | 196423c5c24 |
| 14 | b7814c0000 |
| 15 | 630956cd4c |
| hex | 37850dfd80 |
238455487872 has 960 divisors, whose sum is σ = 865242792960. Its totient is φ = 65292272640.
The previous prime is 238455487871. The next prime is 238455487913. The reversal of 238455487872 is 278784554832.
238455487872 is a `hidden beast` number, since 2 + 3 + 8 + 4 + 5 + 548 + 7 + 87 + 2 = 666.
238455487872 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a super-2 number, since 2×2384554878722 (a number of 24 digits) contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (63).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (238455487871) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 2315101773 + ... + 2315101875.
It is an arithmetic number, because the mean of its divisors is an integer number (901294576).
Almost surely, 2238455487872 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 238455487872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (432621396480).
238455487872 is an abundant number, since it is smaller than the sum of its proper divisors (626787305088).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
238455487872 is an frugal number, since it uses more digits than its factorization.
238455487872 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 191 (or 146 counting only the distinct ones).
The product of its digits is 120422400, while the sum is 63.
The spelling of 238455487872 in words is "two hundred thirty-eight billion, four hundred fifty-five million, four hundred eighty-seven thousand, eight hundred seventy-two".
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